Samuel Onyenweaku was arrested last month after police said he raped a 92-year-old patient at Amber Park Nursing Home, where he worked as a nurse's aide. He was indicted on charges of rape, felonious assault and patient abuse by a grand jury on Thursday.

Prosecutors said that on Nov. 24 around 5 a.m., a nurse attempted to enter the 92-year-old woman's room and discovered that the door was closed and locked, which is not customary.

The nurse unlocked the door and found the victim in her bed with her nightgown pulled up and without any undergarments, prosecutors said.

Onyenweaku was found in the patient's bathroom, prosecutors said. His family has said that Onyenweaku was using the bathroom, but the nurse told officers that some of his clothing was on the floor outside the bathroom.

The victim was transported to University Hospital for an examination and treatment. She was released from the hospital to the care of Cincinnati Hospice.

Onyenweaku was fired by the nursing home and has been in the Hamilton County Justice Center since his arrest.